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RE: Pyrrosia musifolia


Hi all,

If it looks like P. lanceolata, chances are 99.9 % that it is P. lanceolata, especially if origins are uncertain. There are very few species looking even a little bit like P. lanceolata, and they are very restricted in distribution and unlikely to be in culture in Potsdam. Far more likely that the creeping plant somehow ended up behind the wrong label.
For confirmation: 1. check the sori. They should appear to be formed of concentric rows of sporangia. 2. Check the scales of the rhizome. Even with low magnifications, it should be clear that they have a fringed margin.


If that does not solve the matter, get back to me with some sort of picture.

Best,

Peter Hovenkamp


At 05:44 PM 11/5/2004 -0500, you wrote:
Reggie,

The spores came fron the University of Potsdam. The fern looks very much
like Pyrrosia lanceolata but, ours at least, has fronds not quite as stiff.
I realize that Pyrrosia shows much variation over its range, and this may
well be lanceolata.

Bill

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Peter Hovenkamp Nationaal Herbarium Nederland - Leiden Tel. 071-5274732

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